Why does zinc only form a $2^{+}$ ion?

Zinc:

1. Zinc is a transition metal only with atomic numbers $\left(\mathrm{Z}=30\right)$ and thus the Periodic Table symbol $\text{'}\mathrm{Zn}\text{'}.$
2. Zinc is another one of those valuable metals that we utilize on an everyday premise.

Reasons for forming an $+2$ ion in zinc are:

1. Zinc oxide is formed when one atom of zinc and one atom of oxygen combine.
2. Zinc can as it were create +2 positive charged cation particles due to its capacity to lose/shed two electrons in its furthest shell's 4s subshell, coming about in an uncovered zinc particle with the electronic arrangement $\left[Ar\right]3d^{10}.$
3. Ion will be enclosed in a three-dimensional filled/closed subshell, which will keep the electronic configuration stable.
4. In any case, the $+2$oxidation state is largely responsible for zinc's chemistry.'